Clinical characteristics and distribution of migraine aura within the two treatment groups
| Frequency | Per cent | |
| Topiramate | ||
| Visual | 23 | 92 |
| Visual and sensory | 2 | 8 |
| Lamotrigine | ||
| Visual | 20 | 71 |
| Hemiplegic | 1 | 3 |
| Visual and sensory | 4 | 14 |
| Visual, sensory and aphasic | 3 | 10 |